#define _CRT_SECURE_NO_WARNINGS
#include<stdio.h>
enum color { red, yellow, green };
void f(enum color c);

int mian(void)
{
	enum color t = red;
	scanf("%d",&t);
	f(t);
	return 0;
}
void f(enum color c)
{
	printf("%d\n",c);
}